Binary package “shorewall6” in ubuntu maverick

Shoreline Firewall (IPv6 version), netfilter configurator

Shorewall6 allows firewall/gateway requirements to be described using
entries in a set of configuration files. It reads those configuration
files and, with the help of the iptables utility, configures
netfilter to match these requirements.
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Shorewall6 supports a wide range of router/firewall/gateway applications,
traffic shaping and almost every type of VPN.
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This package contains IPv6 support.